Half the things the most powerful doctor in America recommends probably aren't supported by science

A recent study into "The Dr. Oz Show" and one other popular TV health series, "The Doctors," found that of the shows they studied, roughly half the advice doled had little-to-no solid scientific evidence to back it up.

The study only looked at a sampling of the shows, 40 episodes from each from early 2013. Regardless, the findings are important, especially now, as Oz has come under fire for endorsing dozens of "quack" treatments.

Responding to Reuters' requests for comment, Tim Sullivan, the director of publicity for "The Dr. Oz Show," said the show "has always endeavored to challenge the so-called conventional wisdom, reveal multiple points of view and question the status quo."

He added, "The observation that some of the topics discussed on the show may differ from popular opinion or various academic analyses affirms that we are furthering a constructive dialogue about health and wellness."